Development:Small High Bandwidth Telemetry System

开发：小型高带宽遥测系统

• 批准号: 7017559
• 负责人: Ross Kenneth Snider
• 金额: $ 18.02万
• 依托单位: MONTANA STATE UNIVERSITY - BOZEMAN
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-12-16 至 2007-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7017559
• 关键词: acoustic nerve; auditory stimulus; biomedical equipment development; brain electrical activity; computer data analysis; computer program /software; electrical measurement; neural information processing; sound perception; speech recognition; telemetry; vocalization

DESCRIPTION (provided by applicant): There is a current need in the field of auditory neurophysiology for a small high bandwidth telemetry system that will enable the recording of many channels of neural activity in unrestrained animals in response to natural acoustic stimuli. Such a system will provide a powerful tool that will be used to trace neural pathways that process species-specific vocalizations. The transmitter will provide up to 64 neural channels where each channel will be sampled at 50 KHz and will be 1 cm3 in size. It will be designed to allow up to eight simultaneous systems, which will permit researchers to study interactions, vocal exchanges, and communications between and among animals within a social group or colony. The transmitter will be designed to provide an interface to record acoustic signals from several small mounted microphones. Recording both acoustic and neural channels simultaneously will allow these signals to be correlated. Although the system will be targeted at auditory neurophysiology in marmosets, it will be general enough to be used in many neuroethology applications. Specific Aim 1: To develop a 5.8 GHz transmitter that is 1 cm2 in size and that consumes only 90mW of power. The transmitter will be designed to allow up to eight systems to occupy the 5.8 GHz ISM band simultaneously. Specific Aim 2: To develop an amplifier and multiplexer front end for 64 channels that will fit on several boards of size 1 cm2. This will be accomplished by a chip-on-board approach. This will allow the 5.8 GHz transmitter and analog front end to be 1 cm3 in size. Specific Aim 3: To develop a flexible on-line data analysis and Ethernet backend to the telemetry system so that functions such as spike sorting and/or reverse correlation can be performed in real-time as data is collected. Health Relevance: It is believed that studying the neuroethological aspects of communication sounds will contribute most to the understanding of how speech sounds are processed by humans. Studying how a vocally active primate can identify and extract behaviorally relevant vocalizations from other sounds will provide a model that will allow the development of signal processing algorithms that can extract speech signals from other non-speech sounds. This will have a direct impact on improving engineering applications such as robust speech recognition systems and hearing aids.

描述（由申请人提供）：在听觉神经生理学领域，当前对小型高带宽遥测系统的需求，该系统将能够记录自然声学刺激的不受限制动物中许多神经活动的通道。这样的系统将提供一个强大的工具，该工具将用于追踪处理特定物种发声的神经通路。发射器最多可提供64个神经通道，每个通道将以50 kHz采样，尺寸为1 cm3。它的设计将允许多达八个同时系统，这将使研究人员能够研究社会或殖民地动物之间和动物之间的互动，人声交流以及交流。发射器将设计为提供一个接口，以记录来自几个小型麦克风的声学信号。同时记录声学通道和神经通道将允许这些信号相关。尽管该系统将针对摩尔摩斯群岛的听觉神经生理学，但它将足够笼统地用于许多神经顾问应用。 特定目标1：开发一个5.8 GHz发射器的大小为1 cm2，仅消耗90MW的功率。发射器的设计将允许多达八个系统同时占据5.8 GHz ISM频段。 特定目标2：为64个通道开发一个放大器和多路复用器前端，该通道适合几个尺寸1 cm2的板。这将通过芯片板方法来完成。这将使5.8 GHz发射器和模拟前端大小为1 cm3。 特定目的3：要开发灵活的在线数据分析和以太网后端到遥测系统，以便可以在收集数据时实时执行诸如尖峰分类和/或反向相关的函数。 健康相关性：人们相信，研究沟通声音的神经伦理学方面将最大程度地理解人类如何处理语音的方式。研究语音活跃的灵长类动物如何从其他声音中识别和提取与行为相关的发声，将提供一个模型，该模型将允许开发信号处理算法，这些算法可以从其他非语音声音中提取语音信号。这将直接影响改善工程应用，例如强大的语音识别系统和助听器。